Home / 7,718.40-11,577.60-4,437.90

Finding the Fourth Proportional to 7,718.40, 11,577.60 and 4,437.90

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Solution

The fourth proportional to 7,718.40, 11,577.60 and 4,437.90 is: 6,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.40 : 11,577.60 = 4,437.90 : x
  2. Step 2: Convert to fraction form
    7,718.40/11,577.60 = 4,437.90/x
  3. Step 3: Cross multiply
    7,718.40x = 11,577.60 × 4,437.90
  4. Step 4: Simplify right side
    7,718.40x = 51,380,231.04
  5. Step 5: Solve for x
    x = 51,380,231.04/7,718.40
  6. Step 6: Final answer
    x = 6,656.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.